Using your PDF, you scan the concentric rings. Any number on the Cardinal or Ordinal cross is a "hard stop" zone.
Gann Square of 144 Trading Strategies | PDF | Numbers - Scribd Gann Square Of 144 Pdf
On (half of 144), price near $16,072 → potential pivot. Using your PDF, you scan the concentric rings
Here's a brief overview of the construction process: Using your PDF